ssl – clarification on certificate bundle vs certificate chain

I’m in need of a clarification about ssl certificates, I have the general picture but I’m not quite sure about all the moving parts.
the specific issue I’m dealing with is about an Active Directory server certificate and an appliance that needs to establish a connection over ldaps.

the appliance requires an input to config the above that contains both the server certificate and the CA certificate, is that called a certificate bundle or a certificate chain? are those two different things or are they synonymous?

btw I’m not the person configuring the appliance hence I can’t be more specific about the input it requires, during the configuration I was asked to provide “whatever is between the BEGIN and END CERTIFICATE, which I can see via openssl.
I’m assuming it would be possible to provide a single file containing both strings but I’m not quite sure about that.